

⚡ Power up your hustle—charge smarter, live faster!
The Charmast Power Bank is a sleek, high-capacity 20000mAh portable charger featuring 4 built-in cables and 6 output ports, delivering ultra-fast 22.5W QC and 20W PD charging. Its precise LED digital display keeps you informed of remaining power, while its compact design and broad device compatibility make it an essential accessory for professionals who demand convenience and speed on the move.




















| ASIN | B0CJBQBB7F |
| Amperage | 2 Amps |
| Battery Capacity | 20000 Milliamp Hours |
| Battery Cell Type | Lithium Polymer |
| Battery capacity | 20000 Milliamp Hours |
| Best Sellers Rank | 473 in Climate Pledge Friendly ( See Top 100 in Climate Pledge Friendly ) 12 in Mobile Phone Portable Power Banks 473 in Climate Pledge Friendly: Shop All |
| Brand | charmast |
| Brand Name | charmast |
| Colour | Black-20000mAh |
| Compatible Devices | Smartphone, Smartwatch, Tablet |
| Connector Type | Micro USB |
| Connector type | Micro USB |
| Country of Origin | China |
| Customer Reviews | 4.5 out of 5 stars 7,091 Reviews |
| Is Electric | Yes |
| Item Dimensions L x W x Thickness | 16L x 7.3W x 1.9Th centimetres |
| Item Weight | 340 Grams |
| Item height | 0.75 inches |
| Manufacturer | Dong guan Utopia-Originality Technology Co., Ltd |
| Model Number | C2065 |
| Number of Ports | 3 |
| Other Special Features of the Product | Digital Display |
| Portable | Yes |
| Power Source | Corded Electric |
| Product Warranty | 2 |
| Special feature | Digital Display |
| Unit Count | 1.0 Count |
| Voltage | 9 Volts (DC) |
A**N
Brilliant device
This is a truly brilliant device. I bought the higher capacity one and am so pleased I did. It’s a manageable weight and seems to last forever! No loss of charge if not used and will fill an iPhone several times over - useful if you are taking loads of photos and using the battery up more quickly than usual. It’s incredibly quick to charge and the convenience of not needing separate leads is huge (it’s yet to be seen how well the built in leads last). I can walk around using my phone as it charges if needs be. Or sit over a coffee while it slurps up the juice for its battery. My daughter snaffled mine when visiting her far away so on return home I immediately bought myself another. I wouldn’t go anywhere without it now.
C**S
Excellent.
Very good power bank. Seems well made. Gets rid of need to carry multiple cables. It’s fairly slow to charge itself but it charges devices plugged into it quickly. Only thing that would make it better is if you could charge the power bank and use it charge devices at the same time but that functionality is not supported.
G**S
Cheap, but good quality
Not as good as Anker, seems to lose power over time, but a lot cheaper. Will definitely last a few years
K**S
Powerful, Fast, and Reliable!
Absolutely love this power bank! The 23800mAh capacity keeps my smartphone and tablet fully charged multiple times, and the Quick Charge 3.0 & PD 20W feature charges devices super fast. The LED display is really handy to see the exact battery level at a glance. It’s compact, durable, and works perfectly with all my devices. Perfect for travel, work, or daily use — a must-have portable charger! ✅ Massive 23800mAh capacity ✅ Fast charging with Quick Charge 3.0 & PD 20W ✅ LED display for battery level ✅ Portable, reliable, and compatible with multiple devices Highly recommend — a high-capacity, fast, and dependable power bank!
G**L
Be
Heavy but absolutely brilliant. Holds power at 100% for weeks - the fitted cables are great - all options covered. The colour is lovely and charging speed is as expected. Reliable and am really happy with this
T**M
Good little power bank
Good little power bank. Have purchased for myself, and a couple of my family members and have not had any problems so far. Fastest power bank that I have ever had. It has a screen which tells you which percentage of power remaining which is helpful. Easy to use and has multiple different type of charges included, I have had to use 3 of them so far which I didn't think I would have to. I bought on sale, but I think full price at the time of review is also good value for money.
R**N
The Big Beastie With Outputs, Power And Juice Oh My!
This was a purchase that came out of the blue. I've had power banks for ages, and find them oh so handy when away from normal charging situations. However, whilst purchasing something else, this flashed up as a "hurry up, you'll save loads of money, but get on with it" type deal. Given that, after perusing the specs, this power slab blew my other main workhorse out of the water, I thought, well why not? And what a great decision! Not only was I able to donate my older bank to a family member, yet to be initiated and entranced by the secret mysteries of the bankaged power (and how grateful they were - it went to a loving home) but this is a beast. Not only is there a fearsome FOUR count them FOUR outputs that can happily run simultaneously, but it just goes on and on. And rarely does it seem to need to require charging. Much devilry is afoot, I'll be bound, this is the stuff of which the ancients foretold! If you check out the advertising blurbage, there are all kinds of configurations for those who need to charge many devices at once. I mainly use mine for emergency/handy portable power. As you can see in the terrible low res highly professional image taken mere minutes ago, serious gaming can strain a PS4 Controller, so I'll grab my Charmast and charge whilst playing. At this very moment, I have one output to the controller, and one to my phone, which was looking a little anaemic, and the power bank takes all this in its stride. Needless to say I'm extremely happy with this surprise investment. It recharges extremely quickly, and that's from a very underpowered 10-port USB hub that barely manages to creep above 0.5A. It has proven itself worthy of a place in my highly organised mass of techno junk I keep next to me at all times. The convenience is one thing, but that feeling of a safety net when you can't remember what cable is to hand, will it reach, can I still recharge my phone and play Fallout 4 if all the ports on my hub are occupied - all that anxiety is soothed away as the Charmast is unsheathed and rigged up. It's no slouch when it comes to charging either - in the last ten minutes or so, my Moto phone has leapt from 69% to 81%, even with some hungry apps operating and the PS4 Controller on another port. I really like it. True, it's not a thin, lightweight thing like my traveling power bank, but then that one's a "Dire Emergency Break Glass To Sound Fire Alarm" type job, simply to get a black mirrored phone or collapsed tablet to flicker back into life. Whereas the Charmast is the big beastie, ready to be unleashed when danger looms. (Phone up to 92% now). Whether you choose the Charmast or not, everyone should have an emergency power bank in their life, if only for dire emergencies. But if you are looking for some heavy duty power to fire everything up and have enough juice spare to keep your tablet running as you enjoy a season of Bob's Burgers on Netflix afterwards, this is the power slab for the job.
S**N
Handy cables attached means your not scrambling for cables
Really handy power bank. Great with cables included. Takes a while to charge itself but charges devices very quickly. A single charge on the power bank charged my phone from dead twice and my tablet.
Trustpilot
2 weeks ago
5 days ago